Calgary Jeep Association

Author Topic: 4.0L-4.0L HO  (Read 1209 times)

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Offline XJHERO

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4.0L-4.0L HO
« on: November 27, 2005, 12:49:25 PM »
what is the differance between 4.0L and  a 4.0L high output? Is the head different or the crank,cam? spark plugs longer/shorter? did they make 4.0L that are not a high output after 91 in xjs. Any help would be great.

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